Prefabricated parts have been our passion for more than 75 years

About us

Certifications & associations


Our quality standards / certifications

  • Our building control certifications in the sectors of separation technology, sewage treatment technology and collection trays are issued by DIBT – German Institute for Structural Engineering
  • SCC employee certification (Dorsten)
  • Specialist company according to §19 WHG (Dorsten, Zeithain)
  • CE (controlled by quality protection RW)
  • Quality standard – Europe (Dorsten, Dormagen and Gladbeck)
  • KOMO (controlled by KIWA)
  • Quality standard – Netherlands (Dorsten, Dormagen and Gladbeck)
  • External monitoring of in-house production control (WPK) by Güteschutz Beton NRW e.V.
  • Quality standard – Germany (Dorsten and Dormagen), external monitoring of in-house production control (WPK) by KIWA; Quality standard – Europe (Gladbeck)
  • Check of lamella filter system (product sector rainwater treatment) by testing institute IKT in Gelsenkirchen

We are the official supplier of...

  • German Telekom – controlled by external monitoring of Telekom standards by Güteschutz Beton NRW e.V.
  • Deutsche Bahn – controlled by the manufacturer audit of Deutsche Bahn for Q1 qualification
  • ProRail from the Netherlands. We deliver turnout sleepers in accordance with SPC 00094 – controlled by Plurel Company, NL 3551 EM Utrecht